code: def shutdown(cls):
      # Destroy all thread-local instances
      cls.tls = threading.local()
      cls.mailbox = None
      cls.barrier = None
  
imports: import logging
  import threading
  from operator import itemgetter
  from queue import Queue
  import torch
  from torch.distributed import ReduceOp
  from .communicator import Communicator
label_desc: Use image node_id 11 for calling the InProcessCommunicator obj's underlying member method code with example usage: obj.shutdown(cls) without return types